Auto-injector cap



FIG. 1 is a front right perspective view of an auto-injector cap showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof;

The broken lines shown in the drawings illustrate portions of the auto-injector cap that form no part of the claimed design. 

CLAIM The ornamental design for an auto-injector cap, as shown and described. 